Rough Idle

[DamoAu]

I'm new to posting on here, thanks in advance for any advice.....

Does anyone have any suggestions or have experienced a rough idle in an XR6T, their have been no mods made, and it still appears to run fine at anything above idle, it runs similar to my old work panel van with a minor vac leak, but their is no leaks on the XR? It only has 72K on the clock......

Thanks.

[Bonjaz]

mine did it on cold start up for a few weeks, rough idol for about 5seconds then was fine for the rest of the day, but mine was from a new stereo install, if yours is doing it all the time obviously different problem...does it run sluggish when you give it a bootfull???

[DamoAu]

It seems ok when I give it a boot full, however I haven;t driven any other XR6T to compare it with. I am more used to driving a dedicated Gas Ute, It seems good, but not WOW, which is how I felt when I first got it a few years ago...

[BLK6T]

My car idled rough and popped, gave it a full serviced through my tuner and it idled and drove a lot smoother. They put it down to a really dirty fuel filter, old plugs and coils. Idles a lot better now but now has other valve spring related issues, but that's another story!!

[Buf-Phoon]

try cleaning the throttle body as well

[DamoAu]

Thanks guys, Will look in to the fuel filter and Plugs.... Its always been serviced at my local ford dealership. Sometimes I don;t know if that's any better than the local workshop.... The new car warranty was extended to 6 years so after that time to work on it myself..... I know plugs aren't due till 100K, but have bought a new set anyways, now just have to rip all the heat shielding off the exhaust manifold to get to them! My old XH was sooo much simpler for plug changes!

I'll check out the throttle body to, I actually forgot that one..... Having such low K's you forget these things, especially now its 5 years old! Scary how time flies some times!

I've had this car since 4 months old, Give it the boot from time to time, but not full on every time I drive it......... Is it common for the diff to seem a bit sloppy? Like I said it only has 72K, so It seems a bit to early for wear like I have noticed recently...... Just curios if anyone else has found this to?

[Phooned]

... I know plugs aren't due till 100K, but have bought a new set anyways, now just have to rip all the heat shielding off the exhaust manifold to get to them! My old XH was sooo much simpler for plug changes!

The coils are on the top of the motor (not on the side like the XH/EA-AU). You just need to get the crossover and coil cover off. The hardest part of changing the plugs/coils is getting to the screw right at the back of the motor (on the coil cover). No need to rip off the heat shield, unless you plan to retorque the manifold bolts...Cheers, AJ.

[DamoAu]

Thanks Heaps for that... I think I may have been told that a few years ago, I completely forgot! Looks like a reasonably easy job now.... At least that rear bolt is allen key.... A bit awkward but shouldn't be to bad....

[DamoAu]

Plugs Done... Throttle body Done.... It is definitely Idling better now.... And It has a bit more punch when the foot goes down!

With the plugs I noticed on another thread here that someone noted that its a good idea to re-tape the cables to the coils.... Definitely a good idea... The heat in their degrades the original tape and I noticed that it had worn through a bit....

The rear Allen Key Bolt is a bit of a crappy spot, but the rear Coil/Plug are even worse!

This little job proved to me that car dealerships are not worth the money we spend! My bonnet release is broken and so is my oil filer cap! How hard is it to put an oil cap on without breaking the thread off??? Hmm Might ask ford that one!!! Then again, at least they know a bit about the cars they are servicing.. I had a H once, they told me the way to fix break noise is to turn up the radio, Apparently because it was a Late model camira that's how you fix noisy breaks!

Thanks for your help guys....

[igsta]

These cars need throttle body cleaning every 6-12 months to keep the idle smooth. A few reputable tuners dont replace that last allan key screw once its out just to save time for next time.